I based in on the Goldmine book, and according to them, 1st and 2nd were both numbered, and the difference was on side one. Bungalow Bill was listed on the 1st pressing, and The Continuing Story of Bungalow Bill was listed on the 2nd pressing. Mine is the latter.
Released Versions
First pressings (1968) - Mono AND Stereo versions
The standard Apple label.
The label DOES have "Sold in the U.K..." statement.
My stereo copy has "An E.M.I. recording" printed on the left above the 33 1/3 text, my mono copy does not. I can't say whether that's fixed on all variants though.
The sleeves are gatefold and are top opening, the front of which has an embossed "The Beatles", and a unique stamped serial number. Obviously the lower the stamped number the greater the value, so 0050,000 would be about £100, whereas 0000010 could be worth £5,000.
(My numbers, bought on the day of release in the county of Essex in England, are : Mono - 0609258, Stereo - 0387593)
The inner sleeves are black, and the album contains a free poster and four colour prints.
Second Pressings (1973) - Stereo version ONLY
As above, except, the sleeves are un-numbered, the gatefold openings are at the two opposite ends of the sleeves and the inner sleeves are white.
BUT, such are the vagaries of the printing plants, there are also numbered versions around of the end-opening sleeves.
Third Pressings (1982) - Mono version ONLY
Once again, the sleeves are un-numbered, the gatefold openings are at the two opposite ends of the sleeves and the inner sleeves are white, the Apple is light green and the vinyl is lightweight.
The MONO version of the White Album was deleted 31st January 1986.
Fourth Pressings (1995) - Stereo version ONLY
Standard Apple label.
Gatefold sleeve, poster and four prints.
The gatefold sleeve has a printed statement which reads:
"This album has been Direct Metal Mastered From a Digitally Re-mastered Original Tape to give the best possible sound quality"
This release is (surprisingly) on a lightweight vinyl.
Export Only Issue
There is also a "The Beatles" two vinyl set that was issued for Export only in 1968.
This had the catalogue number P-PCS 7067/8 and is very rare.
Instead of being on Apple, it is on the black and yellow Parlophone label with "The Gramophone Co Ltd" on the rim.
The set came with the same four photographs and poster as the standard release.
The machine stamped matrix on side 1 is YEX 709-1 Side 2: YEX 710-1 Side 3: YEX 711-1 Side 4: YEX 712-2.
Well after some research, though I couldn't find a definite, looks as though there were 3 U.S. releases of this album. The first 2 were numbered, but the earlier of the two had the errored Bungalow on side 1 track 6. This was an error which appeared at all U.S. pressing plants. Also the "A" in front of the serial means it was pressed at the Los Angeles location. By the way my reference above only pertains to UK copies.